Overflow drain cover



FIG. 1 is a top plan view of the overflow drain cover, showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a bottom-front perspective view thereof; and,

FIG. 8 is a top-back perspective view thereof.

The portions of the drawings shown in broken lines are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for an overflow drain cover, as shown and described. 